Table 3: Excreted amount of hydroxytyrosol and homovanillic acid at baseline (pre) and end of intervention (post) for the three intervention periods.
Pure hydroxytyrosol | Olive extract | Placebo | ||||
Variable | Pre | Post | Pre | Post | Pre | Post |
Homovanillic acid (µg/8 h urine) |
247.2 (± 371.6) | 4168.0 (± 2355.8) | 365.1 (± 760.7) | 3921.5 (± 2211.9) | 292.0 (± 526.3) | 314.1 (± 500.5) |
Hydroxytyrosol (µg/8 h urine) | < LoD | 744.4 (± 547.4) | < LoD | 791.1 (± 562.6) | < LoD | 16.3 (± 87.9) |
Data points are mean ± SD.